I never GPS'd the speed before or after. Running shallow water was my main concern the motor is a short shaft but is a long short shaft. The wood was for testing I just never went back and raised the jack plate. No there is not enough room for the clamps they have to be above the transom. I haven't bolted the motor to the jack plate.Flatsdaddy said:Thanks for the info, I see how it works now.
Looks like you have yours propped up a little with the piece of wood instead of moving the whole thing up a hole or 2.
A couple more questions if you have time:
Did you gain any speed or have any other large benefits besides being able to run shallower?
Is there enough room between the transom and the plate to screw the motor clamps to the jack plate?
Do you have your motor bolted to the plate?
Thanks again.
For 6" setback you could build my own several of the guys here have. Hunt around for some big aluminum angle or you might get lucky on ebay or craigs list.Flatsdaddy said:I got the motor jacked up about an inch off the top of the transom (like you have a board on your jack plate) and the cav plate is about an inch below the bottom of the boat.
I should be able to raise my motor 2.5 - 3 inches with a 6" setback jack plate. I would think that would translate into a little more speed as well as shallower running.
You might look at mounting a hydrofoil on your motor.mhinkle1990 said:Im interested in putting a jack plate on my 14 foot 87 grumman. I have a 25hp 2 stroke mercury 2003 short shaft 15inch and i feel that when i run full throttle the back of the boat lifts up out of the water and pushes the bow down into the water creating a lot of draft. i figure that if i lift the motor out of the water more than it would prevent the bow from being driven into the water as much creating less draft. if i tilt the motor up and i run full throttle it is too dangerous and not easy to controll, it honestly feels like im running on 3 inches of the back of the boat and accelerating the bow is in the air way too much untill plane. i also was thinking about trim tabs....i know dont criticize but it actually would help tremendously! please give me input im new to the site and trying to get my johnny up to par!
tccanoe said:Ditto on the hydrofoil and you may also want to look at weight distrabution. Can you move your battery all the way foward?
lckstckn2smknbrls said:For 6" setback you could build my own several of the guys here have. Hunt around for some big aluminum angle or you might get lucky on ebay or craigs list.Flatsdaddy said:I got the motor jacked up about an inch off the top of the transom (like you have a board on your jack plate) and the cav plate is about an inch below the bottom of the boat.
I should be able to raise my motor 2.5 - 3 inches with a 6" setback jack plate. I would think that would translate into a little more speed as well as shallower running.
tccanoe said:Hink, Doil-Fin at Boaters World is 41 bucks that includes shipping.
tccanoe said:You got it Hink, Now as far as painting. I've seen guys that know what the're doing take raddle cans and do a pro job. Get those add-on triggers that snap in place on top of the spray can. Get the self etching primer at Wal-Mart in the Auto Section or order on line. Short even bursts etc. Wipe down your boat with acidtone just prior to priming. I'm no expert. Snoop around the site and use the search function on painting. Lots of guys paint and do a pro job. As with all types of painting, prep work is the key. Shoot us some pics of your boat now and as it progresses. It's also a good way to get a date. "Hay, would you like to go for a pick-nick in my boat?" You can't miss. Better than a Corvette.
Enter your email address to join: